Improvement in fastenings for surgical instrufvi ents



Be it known that I, GEORGE the city' of Brooklyn, in the county of Kings4 andSt'ate of New York', haveinvented,made,

and applied touse acertain new and useful AImpr; vement.in Meansfor`Holdi`ng Surgical Instru-ments&'c., when 'Opened'Out of theirlan'dlesyand I dohereby declare the following A to be a full, clear,andexact description of the UNITED STATES GEORGE-minimun, or BROOKLYN, NewYoan.v

fl M-PROVEM ENTJN FASTENIN'GS `FOR su aclcAL ius-rsu we Ems.

Specification forming part of Lette-rsPaten-t No. 4 l,243,vdated January12, 1864.

To d ZZ whom, t may concern: l

TIEMANN, of

same, reference being had to the annex eddrawipggmaking part of thisspecificatiomwhere. '11u-ffii*- Figure' is a side view, and Fig. 2 is-anedge vievvgOLa-.Lsrgical Ainstrumentwith my iin- A 'with the instrument;but when turned across provem'ent attached.

. Similar marksof reference indicate thesame paris.A i

Knives and'variouskinds of instruments,

particularly surgical, have beenwitted into handles and provided withspring-catches and small slides to hold the instrument. open and rigidlyprojectingffrom'tbe handle, iuOrden :thatsuch' instrument may not. shutup `or `dos@ in to the han-d1@ whiiezin use rnje' springcatches arenotreliable, and are of such a character generally -as to injurel the nailsof the fingers or thumb when releasing the springfor .theinstrumenttobeclosed,and the vslides generally have passedv through slots, in thehandleand have hence rendered thel han- -dleliahle to break. This isparticularly. vthe case with small surgical instruments.

' The nature of my saidinvention consists in aturningfastener o'r-buttonapplied-.to the. heel or shank ofthe instrument, and taking over theedgeof v`the handle, so 'as to fasten 4 thefinstrume'nt in' positiouwhenOpen.

inthe drawings, ad are the side pieces'forining the handle, in which'one'or more knives,

surgical or other instruments are fitted to open 0r shut by turning upon:a crosslpin, b, as usual. The instrument itself is representedA -at c,and is provided with a stop at d, formed Of small flanges that take uponthe edges-Ofthe handle when theinstrnmentfisopen- These stops are wellknown.

e is my turning fastener Or button, made of a small piece of metal witha hole through it, loy which-it is to beat-tached te the instrument byascrew or pin,and l ,prefer that the same be introducedbelowanoverhang-ingiiange formed vin the shank of the instrument. rlhe width Ofthis button is tobe such that it will pass'betweenthe sides of thehandle -when parallel This improved,instrument-fastener may be formedasa button extending On both sides of the attaching pin or screw.

The advantages of this device 'will be apparent from-the foregoing.'Thev handle is not. weakened', there is Vnoopportunity for obstrucitionvby dirt, and the button can freely be 'turnedin either'opening orclosing the instrument; g I

What I claim, and desire to secure by Letters Patent, is

The'turning fastener'cl; button applied to surgical or otherinstrumen-ts to retain themin position when opened'out of a handle, asland 'for the purposes specified.

'In 'witness whereof I1 have hereunto set' my .signature this 23d day ofNovember, 1863.

GEO. TIEMANN.

A"Witnesses: LEMUEL W. SERRELL',

T Hos. GEO. HAROLD.

